Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus
The North Atlantic red alga Mastocaipus stellatus is characterized by two life histories (sexual-type and direct-type), which correspond to two geographically isolated breeding groups. These features enable M. stellatus to be an interesting model to investigate how environmental shift and apomictic...
Published in: | Molecular Phylogenetics and Evolution |
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Language: | English |
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2016
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Online Access: | http://ir.qdio.ac.cn/handle/337002/86612 https://doi.org/10.1016/j.ympev.2015.10.029 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/86612 2023-05-15T17:28:51+02:00 Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus Li, Jing-Jing Hu, Zi-Min Liu, Ruo-Yu Zhang, Jie Liu, Shao-Lun Duan, De-Lin 2016 http://ir.qdio.ac.cn/handle/337002/86612 https://doi.org/10.1016/j.ympev.2015.10.029 英语 eng MOLECULAR PHYLOGENETICS AND EVOLUTION Li, Jing-Jing,Hu, Zi-Min,Liu, Ruo-Yu,et al. Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2016,94(2016):463-472. http://ir.qdio.ac.cn/handle/337002/86612 doi:10.1016/j.ympev.2015.10.029 Apomictic Propagation Demographic History Gene Flow Mastocarpus Stellatus Palaeoclimatic Oscillation Population Genetic Structure Article 期刊论文 2016 ftchinacasciocas https://doi.org/10.1016/j.ympev.2015.10.029 2022-06-27T05:37:23Z The North Atlantic red alga Mastocaipus stellatus is characterized by two life histories (sexual-type and direct-type), which correspond to two geographically isolated breeding groups. These features enable M. stellatus to be an interesting model to investigate how environmental shift and apomictic propagation have influenced its population genetic structure, historical demography and distribution dynamic. To test these ideas, we obtained 456 specimens from 15 locations on both sides of the North Atlantic and sequenced portion of the nuclear internal transcribed spacer (ITS), mitochondria] cox2-3 region (COX) and plastid RuBisCo spacer (RLS). Median-joining networks and ML trees inferred from COX and RLS consistently revealed two gene lineages (mtDNA: C-N, C-S; cpDNA: R-N, R-S). The concatenated COX and RLS markers yielded three cytotypes: a northern C-N-R-N, a southern C-S-R-S and a mixed cytotype C-S-R-N, which enabled us to roughly separate samples into D (direct-type life-cycle) and S (sexual-type life-cycle) groups (northern CN-RN and mixed cytotype C-S-R-N = D; southern C-S-R-S = S). Pairwise F-ST analysis of the D group revealed a high level of genetic differentiation both along European coasts and across the Atlantic basin. Bayesian skyline plots (BSPs) and IMa analyses indicated that M. stellatus underwent slight demographic expansion at the late-Pleistocene, with the beginning of divergence between lineages dating to c. 0.189 Ma (95%HPD: 0.083-0.385 Ma). IMa analyses also revealed asymmetric genetic exchange among European populations and a predominant postglacial trans-Atlantic migration from Norway and Galway Bay to North America. Our study highlights the importance of phylogeographic approaches to discover the imprints of climate change, life histories and gene flow in driving population genetic connectivity and biogeographic distribution of intertidal seaweeds in the North Atlantic. (C) 2015 Elsevier Inc. All rights reserved. Article in Journal/Newspaper North Atlantic Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Norway Molecular Phylogenetics and Evolution 94 463 472 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Apomictic Propagation Demographic History Gene Flow Mastocarpus Stellatus Palaeoclimatic Oscillation Population Genetic Structure |
spellingShingle |
Apomictic Propagation Demographic History Gene Flow Mastocarpus Stellatus Palaeoclimatic Oscillation Population Genetic Structure Li, Jing-Jing Hu, Zi-Min Liu, Ruo-Yu Zhang, Jie Liu, Shao-Lun Duan, De-Lin Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus |
topic_facet |
Apomictic Propagation Demographic History Gene Flow Mastocarpus Stellatus Palaeoclimatic Oscillation Population Genetic Structure |
description |
The North Atlantic red alga Mastocaipus stellatus is characterized by two life histories (sexual-type and direct-type), which correspond to two geographically isolated breeding groups. These features enable M. stellatus to be an interesting model to investigate how environmental shift and apomictic propagation have influenced its population genetic structure, historical demography and distribution dynamic. To test these ideas, we obtained 456 specimens from 15 locations on both sides of the North Atlantic and sequenced portion of the nuclear internal transcribed spacer (ITS), mitochondria] cox2-3 region (COX) and plastid RuBisCo spacer (RLS). Median-joining networks and ML trees inferred from COX and RLS consistently revealed two gene lineages (mtDNA: C-N, C-S; cpDNA: R-N, R-S). The concatenated COX and RLS markers yielded three cytotypes: a northern C-N-R-N, a southern C-S-R-S and a mixed cytotype C-S-R-N, which enabled us to roughly separate samples into D (direct-type life-cycle) and S (sexual-type life-cycle) groups (northern CN-RN and mixed cytotype C-S-R-N = D; southern C-S-R-S = S). Pairwise F-ST analysis of the D group revealed a high level of genetic differentiation both along European coasts and across the Atlantic basin. Bayesian skyline plots (BSPs) and IMa analyses indicated that M. stellatus underwent slight demographic expansion at the late-Pleistocene, with the beginning of divergence between lineages dating to c. 0.189 Ma (95%HPD: 0.083-0.385 Ma). IMa analyses also revealed asymmetric genetic exchange among European populations and a predominant postglacial trans-Atlantic migration from Norway and Galway Bay to North America. Our study highlights the importance of phylogeographic approaches to discover the imprints of climate change, life histories and gene flow in driving population genetic connectivity and biogeographic distribution of intertidal seaweeds in the North Atlantic. (C) 2015 Elsevier Inc. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Li, Jing-Jing Hu, Zi-Min Liu, Ruo-Yu Zhang, Jie Liu, Shao-Lun Duan, De-Lin |
author_facet |
Li, Jing-Jing Hu, Zi-Min Liu, Ruo-Yu Zhang, Jie Liu, Shao-Lun Duan, De-Lin |
author_sort |
Li, Jing-Jing |
title |
Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus |
title_short |
Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus |
title_full |
Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus |
title_fullStr |
Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus |
title_full_unstemmed |
Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus |
title_sort |
phylogeographic surveys and apomictic genetic connectivity in the north atlantic red seaweed mastocarpus stellatus |
publishDate |
2016 |
url |
http://ir.qdio.ac.cn/handle/337002/86612 https://doi.org/10.1016/j.ympev.2015.10.029 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
MOLECULAR PHYLOGENETICS AND EVOLUTION Li, Jing-Jing,Hu, Zi-Min,Liu, Ruo-Yu,et al. Phylogeographic surveys and apomictic genetic connectivity in the North Atlantic red seaweed Mastocarpus stellatus[J]. MOLECULAR PHYLOGENETICS AND EVOLUTION,2016,94(2016):463-472. http://ir.qdio.ac.cn/handle/337002/86612 doi:10.1016/j.ympev.2015.10.029 |
op_doi |
https://doi.org/10.1016/j.ympev.2015.10.029 |
container_title |
Molecular Phylogenetics and Evolution |
container_volume |
94 |
container_start_page |
463 |
op_container_end_page |
472 |
_version_ |
1766121985725693952 |